Hi, if UaExpert can no connect on localhost within 30 seconds, but getting timeout instead, the server is nost likely not running (not started, no endpoint open). That said it seems that your UA server is not available. Make sure the server is started and running before connecting. Statistics: Posted by Support Team — Fri May 10, 2024 6:51 pm ..read more

Thanks for your reply. Yes. Not able to connect using UA Expert. Statistics: Posted by vpharshal — Fri May 10, 2024 5:30 pm ..read more

Hello Support Team, I am using the v1.8.2 version C++ SDK. I run the program server_cpp_demo and generated event history by call Start or Stop method, and these event could be viewed in the UaExpert’s Event History window. But AuditWriteUpdateEventType events for writing HumiditySetpoint of AirConditioner couldn't be viewed in the Event History window. I want to realize AuditWriteUpdateEventType events' historizing. Could you give me some advice or example code? Best regards， Jorman Statistics: Posted by jorman — Fri May 10, 2024 9:31 am ..read more

Hi, please consider that the "MaxXYZParameters" are negothiated between the two communication partners. The "increase" of internal stack parameters is always a two sided approach. Whenever you reach such limits, you should consider if you use the OPC UA as intended. Transfering a file content as large ByteString (exceeding message size, encoder limits, etc.) or transfering a file, as a file object without any limitation in size. Statistics: Posted by Support Team — Fri May 10, 2024 9:17 am ..read more

Hi, yes there can be multiple Nodes that "YOU" are not allowed to write. You need to consider two different things here: 1) you are authenticated user, but do not have the correct role for writing this node (UserAccessDenied) 2) you are authenticated user, and have the correct role for writing this node, but use "no encryption/no signing" (SecurityModeInsufficient) Example: if you are "admin" and correctly authenticated, and you have the "operator" role, BUT you are connected via "None" Endpoint, everybody can sniff your WriteRequest (because no encryption and no signing is used on the "None ..read more

Hi, never heard of any such issue. The DemoServer can have several million InMemory Nodes, without any impact on the connect (timeout) whatsoever. So first of all we need to find out which side is having the issue. Is the server up an running when you try to connect? What is result when you connect the UaExpert? Does it end in timeout as well? Statistics: Posted by Support Team — Fri May 10, 2024 8:44 am ..read more

Hi SupportTeam, In my ua server, I want to modify the interface:HistoryManagerBase::readProcessed() of the HistoryManagerBase class. The HistoryManagerBase::readProcessed() implements aggregate calculations by using the readRaw method, but the the readRaw method is a public interface. So I want to create a new method(like readRaw2) instead of the readRaw. Because I want to make the ua server run as ①If receive a [readRaw] request from the ua client, the server will run the readRaw method, ②If receive a [readProcessed] request from the ua client, the server will run the readRaw2 method newly ..read more

Hi, I just tried to install and run OPC UA Modeler, version 1.6.11. At the start, as well as via the menu Help/Check for Updates it reports that the new version 1.6.12 is available. But when I click on the Update button, on the opened web page there is no version 1.6.12 to download. Statistics: Posted by RavilN — Thu May 09, 2024 4:17 pm ..read more

Hi Support Team, Could you please advise? Regards, Harshal Statistics: Posted by vpharshal — Thu May 09, 2024 4:03 pm ..read more

When using UACPPServer as the server and running lesson3, I get the following errors on the writes Writing... Write failed for item[0] with status BadSecurityModeInsufficient Write failed for item[1] with status BadSecurityModeInsufficient Write failed for item[2] with status BadSecurityModeInsufficient Write failed for item[3] with status BadSecurityModeInsufficient Is there something that I need to do to have the permissions to do writes? Statistics: Posted by fergal.cassidy — Thu May 09, 2024 11:43 am ..read more